In the circuit shown in figure,initially `K_1` is closed and `K_2` is open. What are the charges on each capacitors ? Then `K_1` was opened and `K_2` was closed (order is important).What will be the charge on each capacitor now ? `[C = 1 mu F ]`

What is the current in the 4Omega resistor when switch S_(1) is open and switch S_(2) is closed in the given circuit ?

Find the total current in the circuit when the key K_(2) is (i) open (ii) closed.

In a parallel plate capacitor with air between the plates, each plate has an area of 6 xx 10^-3 m^2 and the distance between the plates is 3mm.Calculate the capacitance of the capacitor.If this, capacitor is connected to a 100 V supply,what is the charge on each plate of the capacitor ?

An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with initial charge of 10 mC. The resistance of the circuit in negligible. Let the instant the circuit is closed be t=0. What is the natural frequency of the circuit?

A charged 30 mu F capacitor is connected to a 27 mH inductor. What is the angular frequency of free oscillations of the circuit?

What is the order of a reaction whose rate =K [C] _(A ) ^(3//2) [C ] _(B ) ^(-1//2) ?

Two strings A and B have force constants k_1 and k_2 respectively. The ratio of the work done on A to that done on B when they are stretched by the same force is

An LC circuit contains a 20 mH inductor and a 50 mu F capacitor with initial charge of 10 mC. The resistance of the circuit in negligible.Let the instant the circuit is closed be t=0. What is the total energy stored initially ? Is it conserved during LC oscillations ?

Two rods A and B of different materials are welded together shown in figure. Their thermal conductivities are K_1 and K_2 . The thermal conductivity of the composite rod will be: